-
20 CENTURY
INVENTION OF ELECTRICITY
-We don't know who was the real inventor
-There were several inventors of things that were created from electricity -
THE ANTIKYTHERA MECHANISM
-Was discovered in 1901 in a ship from roman times
-It was found on the island of Antikythera (Greece)
-Found at a depth of 45 meters
-It is considered the first analog computer in the history -
FIRST COMPUTER
-Konrad Zuse was the inventor
-The name was "Z1"
-He made it in the living room of his parents
(between 1936 and 1938) -
E.N.I.A.C. GIRLS
-Jean Jennings Bartik
- Marlyn Wescoff Meltzer
- Ruth Lichterman Teitelbaum
-Betty Snyder Holberton
- Frances Bilas Spence
- Kay Mauchly Antonelli
WERE THE SIX PROGRAMMERS NAMED "ENIAC GIRLS" -
VACUUM TUBES
-
Period: to
1st GENERATION
-Made by VACUUM TUBES
-Very large
-Expensive
-Required huge amaunt of electricity -
E.N.I.A.C.
E lectronic
N umercial
I ntegrator
A nd
C alculator -
TRANSISTORS
-
Period: to
2nd GENERATION
-Made by TRANSITORS
-Smaller
-Cheaper
-Faster -
INTEGRATED CIRCUITS
-
Period: to
3rd GENERATION
-Made by INTEGRATED CIRCUITS
-Smaller
-Cheaper
-Faster
-Less electricity
-Fever mistakes -
MICROPROCESORS
-
Period: to
4rd GENERATION
-MICROPROCESORS
(small clips with thousand of circuits)
-Smaller
-Portable
-Cheaper
-Less electricity
-Less heat -
IBM PC 5150
-It was the most important pc in history
-Was created by a team of engineers
- It is part of 5th GENERATION of computers -
Period: to
5th GENERATION
-Scientist are trying to develop
-"Think on their own"
-Artificial intelligence
(ROBOTS) -
PRESENT
-
FUTURE
-
ROBOTS
